Btrfs: cut down stack usage in btree_write_cache_pages
This adds noinline_for_stack to two helpers used by btree_write_cache_pages. It shaves us down from 424 bytes on the stack to 280. Signed-off-by: Chris Mason <clm@fb.com>
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@ -3393,9 +3393,10 @@ void wait_on_extent_buffer_writeback(struct extent_buffer *eb)
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TASK_UNINTERRUPTIBLE);
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}
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static int lock_extent_buffer_for_io(struct extent_buffer *eb,
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struct btrfs_fs_info *fs_info,
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struct extent_page_data *epd)
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static noinline_for_stack int
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lock_extent_buffer_for_io(struct extent_buffer *eb,
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struct btrfs_fs_info *fs_info,
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struct extent_page_data *epd)
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{
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unsigned long i, num_pages;
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int flush = 0;
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@ -3500,7 +3501,7 @@ static void end_bio_extent_buffer_writepage(struct bio *bio, int err)
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bio_put(bio);
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}
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static int write_one_eb(struct extent_buffer *eb,
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static noinline_for_stack int write_one_eb(struct extent_buffer *eb,
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struct btrfs_fs_info *fs_info,
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struct writeback_control *wbc,
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struct extent_page_data *epd)
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